P0721 OBD-II：输出速度传感器电路范围/性能 OBD-II故障代码P0721是什么意思？
OBD-II代码P0721定义为输出转速传感器电路范围/性能。
输出转速传感器告诉变速器控制模块（TCM）变速器输出轴的旋转速度，以便确认挂入的挡位是否正确。 当TCM从该传感器接收到不准确或不合理的信号时，表明变速器内部存在问题。 发动机控制模块（PCM）或TCM将设置代码P0721。
有此故障代码的车辆应送至修理厂进行诊断。 查找修理厂
P0721 症状
触发P0721代码的常见问题
- 输出轴转速传感器故障
- 动力总成控制模块（PCM）故障
- 变速箱控制模块（TCM）故障
- 接线问题
Ronald Thomas
Jeremy Cruz is a highly experienced automotive enthusiast and a prolific writer in the field of auto repair and maintenance. With a passion for cars that dates back to his childhood days, Jeremy has devoted his career to sharing his knowledge and expertise with consumers who seek reliable and accurate information about keeping their vehicles running smoothly.As a trusted authority in the automotive industry, Jeremy has worked closely with leading manufacturers, mechanics, and industry experts to gather the most up-to-date and comprehensive knowledge in auto repair and maintenance. His expertise extends to a wide range of topics, including engine diagnostics, routine maintenance, troubleshooting, and performance enhancement.Throughout his writing career, Jeremy has consistently provided consumers with practical tips, step-by-step guides, and trusted advice on all aspects of auto repair and maintenance. His informative and engaging content allows readers to understand complex mechanical concepts easily and empowers them to take control of their vehicle's well-being.Beyond his writing skills, Jeremy's genuine love for automobiles and innate curiosity have driven him to constantly stay abreast of emerging trends, technological advancements, and industry developments. His dedication to informing and educating consumers has been recognized by loyal readers and professionalsalike.When Jeremy isn't immersed in automobiles, he can be found exploring scenic driving routes, attending car shows and industry events, or tinkering with his own collection of classic cars in his garage. His commitment to his craft is fueled by his desire to help consumers make informed decisions about their vehicles and ensure they have a smooth and enjoyable driving experience.As the proud author of the blog for the leading provider of auto repair and maintenance information to consumers, Jeremy Cruz continues to be a reliable source of knowledge and guidance for car enthusiasts and everyday drivers alike, making the road a safer and more accessible place for all.
